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FAQ
What is Voltage Sag?
Voltage Sag and Voltage dip have the same meaning.
Voltage Sag(Voltage drop) means the short drop of voltage caused by a fault in
the system, short circuit, operation of the transformer or overload. It is the
most common but most important electrical power quality problem. According to
the IEEE standard(IEEE Std. 1159, 1995), Voltage Sag(Voltage drop) is defined
as rms voltage decrease of from 0.1 to 0.9 per unit(pu) within the duration of
1 minute in 0.5 cycle.
What is Sag-VIEWER™?
Sag-VIEWER™ is TSP®’s primary function that enables to operate “Smart Power Vaccine™.” It provides various information including the actual voltage sag history (Accidents voltage waveform, Compensation voltage waveform, Accident occurrence time, Accident Voltage, Accident duration, Accident history information and etc.), the operation history of TSP®, the amount of power consumption and other useful information. Sag-VIEWER™ is the Application S/W that supports accident surveillance monitoring.
How long does it take to get recharged for Ultra-Capacitor after the voltage sag?
It
depends on the duration of the voltage sag and the discharge level after the
voltage sag. It is uncommon for Ultra-Capacitor to get completely discharged.
In most cases, it takes less than 1 second to be recharged to reach the
available level. Depending on the capacity, it takes about 5 times of usual
recharging time. And the charging time can be reduced by increasing the
percentage(%) setting of TSP®’s charging current considering the power capacity
of installed panelboard.